CN104318144A - Mobile terminal and unlocking method thereof - Google Patents
Mobile terminal and unlocking method thereof Download PDFInfo
- Publication number
- CN104318144A CN104318144A CN201410640778.9A CN201410640778A CN104318144A CN 104318144 A CN104318144 A CN 104318144A CN 201410640778 A CN201410640778 A CN 201410640778A CN 104318144 A CN104318144 A CN 104318144A
- Authority
- CN
- China
- Prior art keywords
- mobile terminal
- expression formula
- variable
- value
- unblock
- Prior art date
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/45—Structures or tools for the administration of authentication
- G06F21/46—Structures or tools for the administration of authentication by designing passwords or checking the strength of passwords
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2133—Verifying human interaction, e.g., Captcha
Abstract
The invention discloses a mobile terminal and an unlocking method thereof. The mobile terminal sets an unlocking expression, and the unlocking expression comprises at least one variable. The unlocking method includes steps that extracting all the variables in the unlocking expression when the mobile terminal is located at a locked state and receives an unlocking command; randomly assigning each variable; displaying the value of each variable and a password entry box; after the password entry box receives an input value as a password, calculating the correct result value of the unlocking expression according to the value of each variable, judging whether the input value is equal to the correct result value, if so, unlocking the mobile terminal; otherwise, enabling the mobile terminal to continue to randomly assign each variable. The unlocking method unlocks the mobile terminal through setting the unlocking expression, the unlocking difficulty is increased, the other people are difficult to decode the unlocking mode of the mobile terminal, and the universality of the mobile terminal unlocking mode is reinforced.
Description
Technical field
The present invention relates to a kind of mobile terminal and unlock method thereof.
Background technology
Along with in mobile terminal giant-screen design and touch-screen popularize, hardware keyboards unlocking manner is originally no longer applicable.Some large enterprises now, as first Apple invents from left to right, drag the mode that slide block unlocks, and have applied for Patents.
And in order to protect individual privacy, while unlocking screen, need the function of personal verification or password authentification.As the mobile phone of the Android system that Google releases, by the different gestures of sliding on digital screen, achieve the function of authentication and cryptoguard.But slip gesture is too simple, is easily decrypted.
After i Phone iPhone 5s, be proposed the function of unlocked by fingerprint, fingerprint and HOME (main interface) key acted on simultaneously, reaches the function of unlocking screen and authentication.And the defect of the unlocked by fingerprint of Apple is that fingerprint authentication all supported by not all mobile phone, its versatility is not strong yet.
Therefore, a kind of to be not easily cracked and the unlocking manner of highly versatile carrys out unlocking mobile terminal is needed.
Summary of the invention
The technical problem to be solved in the present invention is that the unlocking manner overcoming mobile terminal in prior art is easily decrypted and the not strong defect of versatility, provides a kind of mobile terminal and unlock method thereof.
The present invention is solved the problems of the technologies described above by following technical proposals:
A unlock method for mobile terminal, its feature is, mobile terminal setting one unlocks expression formula, and described unblock expression formula comprises at least one variable, and described unlock method comprises the following steps:
S
1, when mobile terminal is in the lock state and receives a unlock command, extract all variablees in described unblock expression formula;
S
2, random assignment operation is performed to each variable;
S
3, show value and a Password Input frame of each variable;
S
4, after the input numerical value to receive as password at described Password Input frame, according to the exploitation of each variable, unlock the correct result value of expression formula, and judge that whether described input numerical value equal with described correct result value, if so, enter step S
5; If not, step S is returned
2;
S
5, mobile terminal unlocks state.
In this programme, unlock expression formula and can also comprise constant, variable number-letter relation table represents, value due to each variable is random generation, make the correct result value that calculates each not identical, if other people steal or intercept user when the password of previous input, but and do not know to unlock expression formula, still cannot unlock mobile terminal after mobile terminal locking.Therefore, compared to existing fixed password unlocking manner or figure unlocking manner, this programme adds unblock difficulty, other people are made more to be difficult to decode the unlocking manner of mobile terminal setting, and can also apply on the mobile terminal of other system owing to arranging the mode unlocking expression formula, therefore, the versatility of mobile terminal unlocking manner is enhanced.
Preferably, mobile terminal sets described unblock expression formula and comprises the following steps:
S
01, receive input a goal expression;
S
02, judge whether described goal expression meets mathematical operation rule, if so, enters step S
03; If not, step S is returned
01;
S
03, using described goal expression as described unblock expression formula.
Wherein, mathematical operation rule comprises the operation rule such as basic addition subtraction multiplication and division arithmetic, index, logarithmic trigonometric function in mathematics, and if divisor can not be 0, bracket needs to occur in pairs, and in logarithm, antilog can not be can not be negative etc. in negative, radical sign.
Preferably, step S
4in when judged result is no, control an initial value be zero counter add 1, and judge whether count value reaches a threshold value, if reach, then forbid performing unlocking operation to mobile terminal within a time period, if do not reach, then return step S
2, step S
4in when judged result is for being, also the count value of counter is reset.
Wherein, the number of times inputting code error continuously need be counted, user is then forbidden again to the unlocking operation of mobile terminal for the situation reaching set point number, to avoid other people or user's Brute Force.
Preferably, step S
03in also comprise and will to be stored in mobile terminal the operation that is provided with the position of reading authority after the encryption of described unblock expression formula.
Wherein, unblock expression formula is encrypted and deposits to a specific position, making to unlock expression formula is not that anyone can read, also and immobile terminal in any application can read, also be not the unblock expression formula seen be exactly unlock expression formula really, thus have and unblock expression formula is not easily illegally accessed and the effect be not easily identified.
Preferably, described unblock expression formula is an arithmetic expression formula.
The present invention also provides a kind of mobile terminal, and its feature is, comprises a setting module, a variable extraction module, a random number generation module, a display module and a correction verification module;
Described setting module is for setting a unblock expression formula;
Described variable extraction module is used for when mobile terminal is in the lock state and receives a unlock command, extracts all variablees in described unblock expression formula, and calls described random number generation module;
Described random number generation module is used for performing random assignment operation to each variable;
Described display module is for showing value and a Password Input frame of each variable;
After described correction verification module is used for the input numerical value received as password at described Password Input frame, the correct result value of expression formula is unlocked according to the exploitation of each variable, and judge that whether described input numerical value is equal with described correct result value, if, mobile terminal unlocks state, if not, described random number generation module is called.
Preferably, described setting module for receiving a goal expression of input, and described goal expression meet mathematical operation rule time using described goal expression as described unblock expression formula.
Preferably, when described correction verification module is also for being no in judged result, control an initial value be zero counter add 1, and judge whether count value reaches a threshold value, if reach, forbid performing unlocking operation to mobile terminal within a time period, if do not reach, then call described random number generation module, the count value of described counter, also for when judged result is for being, resets by described correction verification module.
Preferably, described setting module also comprises a cryptographic storage module, and described cryptographic storage module is used for being provided with the position of reading authority by being stored in mobile terminal one after the encryption of described unblock expression formula.
Preferably, described unblock expression formula is an arithmetic expression formula.
Positive progressive effect of the present invention is: this programme is after arranging a unblock expression formula, the unlocking pin of each generation is not identical, add unblock difficulty, other people are made more to be difficult to decode the unlocking manner of mobile terminal setting, and can also apply on the mobile terminal of other system owing to arranging the mode unlocking expression formula, therefore also enhance the versatility of mobile terminal unlocking manner.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the unlock method of the mobile terminal of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the mobile terminal of the embodiment of the present invention 1.
Fig. 3 is the process flow diagram of the unlock method of the mobile terminal of the embodiment of the present invention 2.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
The present embodiment provides a kind of unlock method of mobile terminal, and as shown in Figure 1, mobile terminal is a mobile phone, the present embodiment realizes the unblock of opponent owner screen, in mobile phone, setting one unlocks expression formula, unlocks expression formula and is assumed to be arithmetic expression formula a: 1000+A+B-C, comprise the following steps:
Step 101, when mobile terminal is in the lock state and receives a unlock command, extract all variablees in described unblock expression formula;
Particularly, this unblock expression formula in fact character string, to search in character string for numeral, not for operational symbol and for this character as the character of variable, can not can be extracted the variable as unlocking in expression formula by completely.Through searching, the variable in the unblock expression formula in the present embodiment is A, B and C.
Step 102, perform random assignment operation to each variable, also namely compose a random value respectively to A, B and C, the variables A of hypotheses creation, the random value of variable B and variable C are respectively 5,2 and 2.
Step 103, the value showing each variable and a Password Input frame; The value of A, B and C can be shown in the position, left, center, right on mobile phone screen, user knows the corresponding relation between each value and each variable, as: the numerical value being shown in the left side in mobile phone screen is the numerical value of variables A, be shown in the middle numerical value for variable B, the numerical value being shown in the right side in mobile phone screen is the numerical value of variable C, certainly, display mode is not limited thereto, different according to the variable number arranged.
After step 104, the input numerical value that receives as password at described Password Input frame, the correct result value of expression formula is unlocked according to the exploitation of each variable, and judge that whether described input numerical value is equal with described correct result value, if so, enter step 105; If not, step 102 is returned;
Now, in Password Input frame, input numerical value, it is 1005 that A, B and C substitution unblock expression formula is calculated correct result value, if the numerical value of user's input is not 1005, then mobile phone can compose random value to variables A, B and C again again.This random value is the random value produced with the last time is incomplete same.Because secondary password changes, if user is at second time input numerical value 1005, mobile phone also can not unlock.Therefore, only have when previous input correct result value, could unlock.
Step 105, mobile terminal unlock state, also namely remove the lock-out state of main screen of mobile phone curtain.
The present embodiment also provides a kind of mobile terminal, as shown in Figure 2, comprises setting module 1, variable extraction module 2, random number generation module 3, display module 4 and a correction verification module 5;
Described setting module 1 is for setting a unblock expression formula;
When described variable extraction module 2 is for being in the lock state at mobile terminal and receiving a unlock command, extract all variablees in described unblock expression formula, and call described random number generation module 3;
Described random number generation module 3 is for performing random assignment operation to each variable;
Described display module 4 is for showing value and a Password Input frame of each variable;
Described correction verification module 5 is for after described Password Input frame reception is as an input numerical value of password, the correct result value of expression formula is unlocked according to the exploitation of each variable, and judge that whether described input numerical value is equal with described correct result value, if, mobile terminal unlocks state, if not, described random number generation module 3 is called.
Visible, by user's self-defining unblock expression formula on mobile phone, and give the variable random assignment unlocked in expression formula, make the password of formation each not identical, thus add unblock difficulty, make other people more be difficult to decode the unlocking manner of mobile terminal setting, in addition, can also increase by the complexity of setting unblock expression formula or reduce and unlock difficulty, as arranged the expression formula of an exponential form.
In addition, the unlocking manner payment that can be applicable on mobile phone of this formative dynamics password unlocks (also namely needing could to perform delivery operation after the unblock of the unlocking manner of the application), subscriber authentication (also namely need with the unlocking manner of the application unlock after just by authentication) or application unlock (also namely need with the unlocking manner of the application unlock after could use this application) etc. situation, also can with existing unlocking manner, as pattern unlocks, unlocked by fingerprint, the modes such as unblock of sliding combine, increase the difficulty unlocked, thus the information security in guarantee mobile terminal.
Embodiment 2
The present embodiment provides a kind of unlock method of mobile terminal, the difference of the method for the present embodiment and embodiment 1 is: mobile terminal judges whether the goal expression inputted meets mathematical operation rule, if, using goal expression as unblock expression formula, and to be stored in mobile terminal one after this unblock expression formula being encrypted and to be provided with the position of reading authority, only have as limited by operate a certain application could read as described in unblock expression formula; If not, then goal expression is re-entered.
During concrete judgement, user have input goal expression: 1000+A+B-C, in fact, this goal expression is also a character string, judge each character in character string, it does not exist divisor is 0, and the situation not meeting mathematical operation rule not to appear etc. in bracket in pairs, therefore, this goal expression can be used as unblock expression formula.
As shown in Figure 3, the difference of the method for the present embodiment and embodiment 1 is also: in step 104 when judged result is no, control an initial value be zero counter add 1, and judge whether count value reaches a threshold value, this threshold hypothesis is 4 times, if reach 4 times, then forbid performing unlocking operation to mobile terminal within a time period, suppose that this time period is 3 minutes, if do not reach 4 times, then returning step 102, in step 104 when judged result is for being, also the count value of counter being reset.
Also namely, if user unlocks failure first time, then counter can add 1, but second time unlocks successfully, then counter can reset, again to count the number of times inputting numerical fault next time, also namely, counter only counts the situation of input numerical fault continuously.
Visible, originally implement also to have while the effect reaching embodiment 1 and unblock expression formula is not easily illegally accessed, is not easily identified and can avoids by the effect of Brute Force.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (10)
1. a unlock method for mobile terminal, is characterized in that, mobile terminal setting one unlocks expression formula, and described unblock expression formula comprises at least one variable, and described unlock method comprises the following steps:
S
1, when mobile terminal is in the lock state and receives a unlock command, extract all variablees in described unblock expression formula;
S
2, random assignment operation is performed to each variable;
S
3, show value and a Password Input frame of each variable;
S
4, after the input numerical value to receive as password at described Password Input frame, according to the exploitation of each variable, unlock the correct result value of expression formula, and judge that whether described input numerical value equal with described correct result value, if so, enter step S
5; If not, step S is returned
2;
S
5, mobile terminal unlocks state.
2. unlock method as claimed in claim 1, it is characterized in that, mobile terminal sets described unblock expression formula and comprises the following steps:
S
01, receive input a goal expression;
S
02, judge whether described goal expression meets mathematical operation rule, if so, enters step S
03; If not, step S is returned
01;
S
03, using described goal expression as described unblock expression formula.
3. unlock method as claimed in claim 1, is characterized in that, step S
4in when judged result is no, control an initial value be zero counter add 1, and judge whether count value reaches a threshold value, if reach, then forbid performing unlocking operation to mobile terminal within a time period, if do not reach, then return step S
2, step S
4in when judged result is for being, also the count value of counter is reset.
4. unlock method as claimed in claim 2, is characterized in that, step S
03in also comprise and will to be stored in mobile terminal the operation that is provided with the position of reading authority after the encryption of described unblock expression formula.
5. as the unlock method in claim 1-4 as described in any one, it is characterized in that, described unblock expression formula is an arithmetic expression formula.
6. a mobile terminal, is characterized in that, comprises a setting module, a variable extraction module, a random number generation module, a display module and a correction verification module;
Described setting module is for setting a unblock expression formula;
Described variable extraction module is used for when mobile terminal is in the lock state and receives a unlock command, extracts all variablees in described unblock expression formula, and calls described random number generation module;
Described random number generation module is used for performing random assignment operation to each variable;
Described display module is for showing value and a Password Input frame of each variable;
After described correction verification module is used for the input numerical value received as password at described Password Input frame, the correct result value of expression formula is unlocked according to the exploitation of each variable, and judge that whether described input numerical value is equal with described correct result value, if, mobile terminal unlocks state, if not, described random number generation module is called.
7. mobile terminal as claimed in claim 6, is characterized in that, described setting module for receiving a goal expression of input, and when described goal expression meets mathematical operation rule using described goal expression as described unblock expression formula.
8. mobile terminal as claimed in claim 6, it is characterized in that, when described correction verification module is also for being no in judged result, control an initial value be zero counter add 1, and judge whether count value reaches a threshold value, if reach, forbid performing unlocking operation to mobile terminal within a time period, if do not reach, then call described random number generation module, the count value of described counter, also for when judged result is for being, resets by described correction verification module.
9. mobile terminal as claimed in claim 7, it is characterized in that, described setting module also comprises a cryptographic storage module, and described cryptographic storage module is used for being provided with the position of reading authority by being stored in mobile terminal one after described unblock expression formula encryption.
10. as the mobile terminal in claim 6-9 as described in any one, it is characterized in that, described unblock expression formula is an arithmetic expression formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640778.9A CN104318144A (en) | 2014-11-13 | 2014-11-13 | Mobile terminal and unlocking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640778.9A CN104318144A (en) | 2014-11-13 | 2014-11-13 | Mobile terminal and unlocking method thereof |
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| CN104318144A true CN104318144A (en) | 2015-01-28 |
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Cited By (5)
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| CN105184128A (en) * | 2015-09-09 | 2015-12-23 | 广东欧珀移动通信有限公司 | Unlocking method and device for APP in mobile terminal |
| WO2016145768A1 (en) * | 2015-03-19 | 2016-09-22 | 中兴通讯股份有限公司 | Unlocking method, and unlocking password setting method and device |
| CN106571908A (en) * | 2016-10-19 | 2017-04-19 | 携程计算机技术（上海）有限公司 | Hotel password setting method |
| CN107480979A (en) * | 2016-06-07 | 2017-12-15 | 中国移动通信有限公司研究院 | A kind of information control method, device and mobile terminal |
| CN108765637A (en) * | 2018-03-29 | 2018-11-06 | 杭州美登科技股份有限公司 | Smart machine child lock and its control method, control system |
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Effective date of registration: 20160206 Address after: 200335 Shanghai city Changning District Admiralty Road No. 968 Building No. 16 10 floor Applicant after: SHANGHAI XIECHENG BUSINESS CO., LTD. Address before: 200335 Shanghai City, Changning District Fuquan Road No. 99, Ctrip network technology building Applicant before: Ctrip computer technology (Shanghai) Co., Ltd. |
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Application publication date: 20150128 |